山岳トンネル(1)

[VI-405] About super close construction of Kisaichi Maruyama tunnel II line

〇Yoshikatsu Maeda¹, Keisuke Takeichi², Kazuhiro Katayama³, Souichiro Satou⁴, Sinsuke Takayama⁵, Hiroshi Sakai⁶ (1.West Nippon Expressway Company, 2.West Nippon Expressway Company, 3.West Nippon Expressway Company, 4.West Nippon Expressway Company, 5.Aoki asunaro, 6.Aoki asunaro)

Keywords:Glasses tunnel, Early closure, Proximity construction, Measurement management, Preceding displacement